/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */

interface Greetable {
    String name();
    default String hello() {
        return 'hello'
    }
    default public String sayHello() {
        return this.hello() + ', ' + this.name()
    }
}

class Person implements Greetable {
    @Override
    public String name() {
        return 'Daniel'
    }
}

def p = new Person()
assert 'hello, Daniel' == "${p.hello()}, ${p.name()}"
assert 'hello, Daniel' == p.sayHello()